Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 2/10/2023
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 02/12/2023 05:43:27 -70.62, -89.99 95.55 02/12/2023 05:44:38 -70.49, -89.14 95.73 34.86 71
2 02/12/2023 06:34:04 70.15, 78.08 83.94 02/12/2023 06:34:09 70.17, 78.04 83.96 2.85 5
3 02/12/2023 07:24:46 -70.05,-114.46 96.18 02/12/2023 07:23:39 -70.05,-114.49 96.17 1.09 67
4 02/14/2023 22:00:14 -70.25, 26.39 96.85 02/14/2023 22:01:09 -70.23, 26.37 96.88 2.57 55
5 02/14/2023 22:50:58 70.14,-166.14 83.03 02/14/2023 22:50:36 70.12,-166.14 83.01 2.26 22
6 02/14/2023 23:41:26 -69.31, 2.42 97.86 02/14/2023 23:40:18 -69.35, 0.44 97.73 78.09 68
7 02/17/2023 14:17:08 -70.21, 142.24 97.82 02/17/2023 14:17:36 -70.19, 142.20 97.84 2.39 28
8 02/17/2023 15:07:52 70.10, -50.29 82.06 02/17/2023 15:07:03 70.08, -50.31 82.05 2.57 49
9 02/20/2023 05:43:20 70.28, 90.59 81.32 02/20/2023 05:44:32 70.26, 90.56 81.29 2.33 72
10 02/20/2023 06:34:02 -70.18,-101.93 98.81 02/20/2023 06:34:02 -70.15,-101.96 98.83 2.91 0
11 02/20/2023 07:24:43 69.91, 65.78 80.91 02/20/2023 07:23:30 69.98, 65.45 81.00 14.71 73
12 02/22/2023 22:00:13 70.21,-153.52 80.28 02/22/2023 22:00:57 70.22,-153.60 80.28 3.07 44
13 02/22/2023 22:50:55 -70.11, 13.96 99.85 02/22/2023 22:50:27 -70.12, 13.89 99.84 2.82 28

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/10/2023
SNOs_Map_NPP_LANDSAT-9_20230210.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/10/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9